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    Systems And Methods For Antenna Management Using Per-Packet Channel Information
    11.
    发明申请
    Systems And Methods For Antenna Management Using Per-Packet Channel Information 有权
    使用每分组信道信息进行天线管理的系统和方法

    公开(公告)号：US20140269994A1

    公开(公告)日：2014-09-18

    申请号：US13826659

    申请日：2013-03-14

    Applicant: QUALCOMM INCORPORATED

    Inventor： Sandip HomChaudhuri ,  Kai Shi ,  Alireza Raissinia ,  Ning Zhang

    IPC: H04W52/02 ,  H04B7/08

    CPC classification number: H04W52/0209 ,  H04B7/0617 ,  H04B7/0822 ,  H04B7/0874 ,  H04W52/028 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22 ,  Y02D70/444

    Abstract: A wireless device that operates in accordance with the IEEE 802.11 standard receives the preamble of a packet with the highest number of receive chains enabled, thereby obtaining the highest gain, detection sensitivity and range. The wireless device determines a signal-to-noise ratio (SNR) in response to two different short training fields (STFs) in the preamble. The wireless device also determines a modulation and coding scheme (MCS) and a number of spatial streams (Nss) used to transmit the received packet in response to a signal field of the preamble. The wireless device uses these determined parameters to identify a minimum number of the receive chains required to reliably receive the packet. The wireless device uses only the identified minimum number of receive chains to perform channel estimation and receive the data portion of the packet.

    Abstract translation: 根据IEEE 802.11标准操作的无线设备接收具有最高数量的接收链启用的分组的前同步码，从而获得最高增益，检测灵敏度和范围。 无线设备响应于前导码中的两个不同的短训练场（STF）来确定信噪比（SNR）。 无线设备还确定响应于前导码的信号字段而用于发送所接收的分组的调制和编码方案（MCS）和多个空间流（Nss）。 无线设备使用这些确定的参数来识别可靠地接收分组所需的接收链的最小数量。 无线设备仅使用所识别的最小数量的接收链来执行信道估计并接收数据包的数据部分。

    CONDITIONAL INHERITANCE IN MANAGEMENT FRAME FOR MULTIPLE BASIC SERVICE SETS
    14.
    发明申请
    CONDITIONAL INHERITANCE IN MANAGEMENT FRAME FOR MULTIPLE BASIC SERVICE SETS 审中-公开

    公开(公告)号：US20190268221A1

    公开(公告)日：2019-08-29

    申请号：US16288025

    申请日：2019-02-27

    Applicant: QUALCOMM Incorporated

    Inventor： Yongchun Xiao ,  Abhishek Pramod Patil ,  Sandip HomChaudhuri ,  Ravi Gidvani ,  Alfred Asterjadhi ,  George Cherian

    IPC: H04L12/24 ,  H04W40/24 ,  H04L12/28

    Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for implementing conditional inheritance in a management frame for two or more basic service sets (BSSs). In one aspect, an apparatus may be configurable to provide functions of a first virtual access point (VAP) corresponding to a first BSS and a second VAP corresponding to a second BSS. The apparatus may determine a first BSS identifier (BSSID) profile for the second VAP by customizing one or more management elements of management information of the first VAP. The apparatus may configure a first non-inheritance element of the first BSSID profile associated with the second VAP to indicate usage of at least one management element of the management information by the second BSS associated with the second VAP is disabled. The apparatus may generate a management frame that comprises at least the first BSSID profile for transmission.

    ADAPTIVE TARGET WAKE TIME SCHEDULING
    15.
    发明申请
    ADAPTIVE TARGET WAKE TIME SCHEDULING 审中-公开

    公开(公告)号：US20180295573A1

    公开(公告)日：2018-10-11

    申请号：US15481106

    申请日：2017-04-06

    Applicant: QUALCOMM Incorporated

    Inventor： Ravi Gidvani ,  Sandip HomChaudhuri ,  Zhanfeng Jia ,  BadriSrinivasan Sampathkumar ,  Alireza Raissinia ,  Srinivas Katar ,  Madhan Jaganathan ,  Xiaolong Huang

    IPC: H04W52/02 ,  H04W72/04

    Abstract: Methods, systems, and devices for wireless communication are described. An access point (AP) may communicate with a plurality of stations in a basic service set (BSS) according to a target wakeup time (TWT) slot duration. The AP may identify one or more congestion or interference factors for the BSS. In some cases, the AP may identify a congestion score based at least in part on at least one of the one or more congestion factors from one or more stations that can be part of its own BSS, and an interference score based at least in part on at least one of the one or more interference factors form one or more stations that are not part of AP's BSS. In some cases, the AP may modify the TWT slot duration based at least in part on the congestion score and the interference score.

    Polling beacon
    17.
    发明授权
    Polling beacon 有权

    公开(公告)号：US09807691B2

    公开(公告)日：2017-10-31

    申请号：US13781612

    申请日：2013-02-28

    Applicant: QUALCOMM Incorporated

    Inventor： Zhanfeng Jia ,  Sandip HomChaudhuri ,  Alireza Raissinia

    IPC: H04W52/02 ,  H04W48/14 ,  H04W48/12

    CPC classification number: H04W52/0229 ,  H04W48/12 ,  H04W48/14 ,  H04W52/0216 ,  Y02D70/142

    Abstract: Beacon-poll frames are transmitted from a station (STA) to a wireless AP in an opportunistic manner. In response to receiving a beacon-poll frame, the wireless AP transmits a unicast beacon frame to the STA, thereby eliminating the need for the STA to periodically wake up to receive broadcast beacon frames from the AP. The wireless AP may transmit the unicast beacon frame at a higher speed than a conventional broadcast beacon frame. As a result, the time that the STA must be awake to receive the unicast beacon frame is significantly less than the time that the STA must be awake to receive a conventional broadcast beacon frame, thereby resulting in significant power savings within the STA. The wireless AP may aggregate downlink (DL) data packets to be transmitted to the STA with the unicast beacon frame, resulting in further power savings within the STA.

    CONGESTION ADAPTED ACTIVE SCAN DWELL TIME
    19.
    发明申请
    CONGESTION ADAPTED ACTIVE SCAN DWELL TIME 有权
    CONGESTION ADAPTED主动扫描DWELL时间

    公开(公告)号：US20170055254A1

    公开(公告)日：2017-02-23

    申请号：US14829228

    申请日：2015-08-18

    Applicant: QUALCOMM Incorporated

    Inventor： Sandip HomChaudhuri ,  Pradeep Kumar Yenganti

    IPC: H04W72/04 ,  H04W24/08 ,  H04W48/16 ,  H04W28/02

    CPC classification number: H04W72/0446 ,  H04W24/08 ,  H04W28/0284 ,  H04W48/16

    Abstract: Methods, systems, and apparatuses are described for adaptive dwell time for scan procedures. An access terminal (AT) may identify a scan period associated with performing a scan procedure on a first channel. The AT may analyze a channel congestion metric during the scan period and determine based, at least in part, on the channel congestion metric whether to exit the first channel. The AT may provide a probe request for transmission on a second channel during a remaining portion of the scan period based on the determination to exit the first channel.

    Abstract translation: 描述用于扫描程序的自适应停留时间的方法，系统和装置。 接入终端（AT）可以识别与在第一信道上执行扫描过程相关联的扫描周期。 AT可以在扫描周期期间分析信道拥塞度量，并且至少部分地基于信道拥塞度量决定是否退出第一信道。 基于离开第一信道的确定，AT可以在扫描周期的剩余部分期间在第二信道上提供发送请求。

    SHARED ANTENNA LOSS DETECTION AND RECOVERY
    20.
    发明申请
    SHARED ANTENNA LOSS DETECTION AND RECOVERY 有权
    共享天线损失检测和恢复

    公开(公告)号：US20160294464A1

    公开(公告)日：2016-10-06

    申请号：US14678753

    申请日：2015-04-03

    Applicant: QUALCOMM Incorporated

    Inventor： Sandip HomChaudhuri ,  Gangadhar Burra ,  Alireza Raissinia

    IPC: H04B7/08 ,  H04W24/04

    CPC classification number: H04B7/0857 ,  H04B1/18 ,  H04B7/0825 ,  H04L1/00 ,  H04W24/04

    Abstract: Methods, systems, and devices are described for wireless communication at a wireless communications device. The device may use several antennas to receive a signal, one of which may be shared between two radios. During signal reception, a radio may detect when the shared antenna is abruptly taken over by the other radio. The radio may detect the loss of the antenna by measuring an impedance mismatch. Alternatively, the radio may reference an antenna switch control that is used to facilitate the switch. After detection, the radio may recover from the antenna loss by adjusting signal processing. For example, the radio may modify a maximal ratio combining (MRC) operation. In certain examples, the device may disregard the signal version from the shared antenna in the computation of MRC weights. In some cases, the device may interrupt an MRC weight computation and use MRC weights from a previous calculation.

    Abstract translation: 描述了用于无线通信设备的无线通信的方法，系统和设备。 设备可以使用几个天线来接收信号，其中之一可以在两个无线电之间共享。 在信号接收期间，无线电可以检测共享天线何时被其他无线电装置突然接管。 无线电可以通过测量阻抗失配来检测天线的损耗。 或者，无线电装置可以参考用于促进切换的天线切换控制。 检测后，无线电可以通过调整信号处理从天线损耗中恢复。 例如，无线电可以修改最大比组合（MRC）操作。 在某些示例中，在计算MRC权重时，设备可以忽略来自共享天线的信号版本。 在某些情况下，设备可以中断MRC权重计算，并使用先前计算的MRC权重。

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